Spells

A lamia matriarch casts spells as a 6th-level sorcerer, and can cast spells from the cleric list as well as those normally available to a sorcerer. Cleric spells are considered arcane spells for a lamia matriarch.

Wisdom Drain (Su)

A lamia matriarch drains 1d4 points of Wisdom each time she hits with her melee touch attack. The first time each round that she strikes a foe with a melee weapon, she also drains 1 point of Wisdom. A DC 21 Will save negates the Wisdom drain. Unlike with other kinds of ability drain attacks, a lamia matriarch does not heal damage when she uses her Wisdom drain*. The save DC is Charisma-based.

The queens of a race consumed by bitterness and predatory instinct,
lamia matriarchs mastermind all manner of foul plots in hopes of
breaking the bestial curse that afflicts their race. They move with
shocking ease from silken-tongued temptresses to dervishes, striking
with all the deadly precision of vipers. Quick to covet, enslave, and
overindulge, lamia matriarchs luxuriate in gory feasts, violent trysts,
and bloody entertainments, reveling until their playthings are broken or
until they tire and move on.